BBS 200-AVMT 2060 Hydraulics &
Pneumatics- study guide questions And
Answers.
hydraulic operations are roughly 1.)___% efficient with 2.)____ loss due to fluid friction. -
Answer 1.) 100%
2.) negligible
p. 12-2
The three principle categories of hydraulic fluids are: 1.)____, 2.)____, and 3.)____ base -
Answer 1.) Phosphate Ester
2.) Polyalphaolefin
3.) Mineral
p. 12-3
Phosphate Ester based fluids are mostly used in transport category aircraft and is commonly
referred to as 1.)____and has a 2.)____ color. - Answer 1.) Skydrol
2.) purple
p. 12-3
Filter ratings are given in terms of ____. - Answer Microns
p. 12-14
Differential pressure indicators are designed to prevent false indications due to 1.)_____,
2.)____, 3.)____. - Answer 1.) cold start
2.) pump ripple or vibration
3.) shock loads
p. 12-15
Power packs are driven by either a(an) 1.) ____ or 2.)___ - Answer 1.) engine gearbox
2.) electric motor
, Reservoirs can be either pressurized or 1.)____. Commercial transport aircraft have air-
pressurized reservoirs and most of them use 2.)____ to do this - Answer 1.) non-pressurized
2.) bleed air
p. 12-9/12-10
A filter is a(n) 1.)____ or 2.)____ device used to clean the hydraulic fluid, thus 3.) ____ foreign
contaminates from remaining in the system. - Answer 1.) screening
2.) straining
3.) preventing
p. 12-13
Hydraulic systems require special accessories such as 1.)____, 2.) ____, and
3.) ____ to be compatible with the fluid being used. - Answer 1.) seals
2.) gaskets
3.) hoses
p. 12-4
Maintenance of filters is relatively easy. it consists mostly 1.) ____ the filter and element or
cleaning the filter and 2.) ____ the element. - Answer 1.) cleaning
2.) replacing
p. 12-14
1.) ____ pressure provides a convenient means of monitoring the condition of installed filter
elements. it is the 2.)____ ____ used in the differential-pressure or 3.) ____-filter indicators
found on many filter assemblies. - Answer 1.) differential
3.) operating principle
2.) loaded
p. 12-14
Once extended, the differential pressure indicator must be 1.) ____ ____and provides a 2.) ____
warning of a loaded element. - Answer 1.) manually reset
Pneumatics- study guide questions And
Answers.
hydraulic operations are roughly 1.)___% efficient with 2.)____ loss due to fluid friction. -
Answer 1.) 100%
2.) negligible
p. 12-2
The three principle categories of hydraulic fluids are: 1.)____, 2.)____, and 3.)____ base -
Answer 1.) Phosphate Ester
2.) Polyalphaolefin
3.) Mineral
p. 12-3
Phosphate Ester based fluids are mostly used in transport category aircraft and is commonly
referred to as 1.)____and has a 2.)____ color. - Answer 1.) Skydrol
2.) purple
p. 12-3
Filter ratings are given in terms of ____. - Answer Microns
p. 12-14
Differential pressure indicators are designed to prevent false indications due to 1.)_____,
2.)____, 3.)____. - Answer 1.) cold start
2.) pump ripple or vibration
3.) shock loads
p. 12-15
Power packs are driven by either a(an) 1.) ____ or 2.)___ - Answer 1.) engine gearbox
2.) electric motor
, Reservoirs can be either pressurized or 1.)____. Commercial transport aircraft have air-
pressurized reservoirs and most of them use 2.)____ to do this - Answer 1.) non-pressurized
2.) bleed air
p. 12-9/12-10
A filter is a(n) 1.)____ or 2.)____ device used to clean the hydraulic fluid, thus 3.) ____ foreign
contaminates from remaining in the system. - Answer 1.) screening
2.) straining
3.) preventing
p. 12-13
Hydraulic systems require special accessories such as 1.)____, 2.) ____, and
3.) ____ to be compatible with the fluid being used. - Answer 1.) seals
2.) gaskets
3.) hoses
p. 12-4
Maintenance of filters is relatively easy. it consists mostly 1.) ____ the filter and element or
cleaning the filter and 2.) ____ the element. - Answer 1.) cleaning
2.) replacing
p. 12-14
1.) ____ pressure provides a convenient means of monitoring the condition of installed filter
elements. it is the 2.)____ ____ used in the differential-pressure or 3.) ____-filter indicators
found on many filter assemblies. - Answer 1.) differential
3.) operating principle
2.) loaded
p. 12-14
Once extended, the differential pressure indicator must be 1.) ____ ____and provides a 2.) ____
warning of a loaded element. - Answer 1.) manually reset
